#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
    int a = 0;
    while(scanf("%d",&a) != EOF) 
    {
        switch(a)
        {
            case 200:
                   printf("OK\n");
                   break;
            case 202:
                    printf("Accepted\n");
                    break;
            case 400:
                    printf("Bad Request\n");
                    break;
            case 403:
                    printf("Forbidden\n");
                    break;
            case 404:
                    printf("Not Found\n");
                    break;
            case 500:
                    printf("Internal Server Error\n");
                    break;
            case 502:
                    printf("Bad Gateway\n");
                    break;
        }
    }
    return 0;
}

